3
infinitesimal
3
insignificant(adjective, weak, low, inferior, feeble)
3
lanky
3
minor(adjective, weak, feeble, tiny, smaller)
3
petty(weak, feeble, tiny, littleness)
3
scraggy
3
shrivelled
3
skeletal
3
skinny
3
spindly
3
teensy-weensy
3
teeny-weeny
3
thin
3
twiggy
2
dinky(slight, low, inferior, insignificant, limited)
2
feeble(weak, frail, tiny)
2
gangly
2
half-pint(adjective, weak, short, feeble, little)
2
immature
2
incipient
11 years ago|15k views|share |citing 
APASmart Define. (2015). undersized thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/undersized/thesaurus/synonyms
ChicagoSmart Define. 2015. "undersized thesaurus" https://smartdefine.org/undersized/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, undersized thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/undersized/thesaurus/synonyms>.
MLASmart Define. "undersized thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/undersized/thesaurus/synonyms>